<template>
  <div id="root">
    <div class="todo-container">
      <div class="todo-wrap">
        <TodoHeader :addTodo="addTodo"></TodoHeader>
        <TodoList
          :todos="todos"
          :checkTodo="checkTodo"
          :deleteTodo="deleteTodo"
        ></TodoList>
        <TodoFooter
        :todos='todos'
        :checkAllTodo='checkAllTodo'
        :deleteAllDone='deleteAllDone'
        ></TodoFooter>
      </div>
    </div>
  </div>
</template>

<script>
import TodoHeader from "./components/TodoHeader";
import TodoList from "./components/TodoList";
import TodoFooter from "./components/TodoFooter";

export default {
  name: "App",
  components: {
    TodoHeader,
    TodoList,
    TodoFooter,
  },
  data() {
    return {
      todos: [
        { id: "0001", title: "吃饭", done: true },
        { id: "0002", title: "睡觉", done: false },
        { id: "0003", title: "学习Vue", done: true },
      ],
    };
  },
  methods: {
    addTodo(x) {
      // x是接收自子组件的数据（todoObj）
      // console.log('我是App');
      // console.log(todoObj);
      this.todos.unshift(x);
    },
    checkTodo(x) {
      // 传入的参数是处理的item的id
      // console.log(x);
      this.todos.forEach((e) => {
        if (e.id === x) {
          // console.log('抓到你了');
          e.done = !e.done;
        }
      });
    },
    deleteTodo(x) {
      this.todos = this.todos.filter(e => e.id !== x);
    },
    checkAllTodo(x){
      // x是footer组件传来的是否勾选全选框的布尔值
      this.todos.forEach(todo => todo.done = x)
    },

    deleteAllDone(){
      this.todos = this.todos.filter(todo => todo.done !== true)
    }
  },
};
</script>


<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>